<%@page import="org.w3c.dom.Document"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
	<input type="text" id="bdqn" value=""/>
	<input type="button" value="button-1" onclick="clickButton()"/>
	<script type="text/javascript">
	function clickButton() {
		<%
			out.print("alert('click Buttom!');");
			String str = "北大青鸟";
			out.print("document.getElementById('bdqn').value='"+str+"'");
		%>
	}
</script>
</body>
</html>